package com.loveling.base.servlet;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.loveling.base.config.MyConfig;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.sql.SQLException;

/**
 * 访问地址：http://localhost:8080/druid/index.html
 * Created by liang on 2017/6/2.
 */
@Configuration
public class DruidConfiguration {

    @Autowired
    private MyConfig myConfig;



    /**
     * 注册一个StatViewServlet
     *
     * @return
     */
    @Bean
    public ServletRegistrationBean DruidStatViewServle() {
        String username = myConfig.getUsername();
        String password = myConfig.getPassword();

        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(
                new StatViewServlet(), "/druid/*");
        //添加初始化参数：initParams

        //白名单：
        servletRegistrationBean.addInitParameter("allow", "127.0.0.1");
        //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.
        servletRegistrationBean.addInitParameter("deny", "192.168.1.73");
        //登录查看信息的账号密码.
        servletRegistrationBean.addInitParameter("loginUsername", username);
        servletRegistrationBean.addInitParameter("loginPassword", password);
        //是否能够重置数据.
        servletRegistrationBean.addInitParameter("resetEnable", "false");
        return servletRegistrationBean;
    }

    /**
     * 注册一个：filterRegistrationBean
     *
     * @return
     */
    @Bean
    public FilterRegistrationBean druidStatFilter() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        //添加过滤规则.
        filterRegistrationBean.addUrlPatterns("/*");

        //添加不需要忽略的格式信息.
        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid2/*");
        return filterRegistrationBean;
    }

    /**
     * 用配置配置，不使用注入配置
     */
    /*public DataSource druidDataSource(String driver,String url,String username,
                                      String password,int maxActive){
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setDriverClassName(driver);
        druidDataSource.setUrl(url);
        druidDataSource.setUsername(username);
        druidDataSource.setPassword(password);
        druidDataSource.setMaxActive(maxActive);
        try {
            druidDataSource.setFilters("stat, wall");
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return druidDataSource;
    }*/

}
